The Star Kings by Edmond Hamilton
Paperback Library, 1967 (Originally published 1949)
Price I paid: none
Flung across space and time by the sorcery of super-science, John Gordon exchanges bodies with Zarth Arn, Prince of the Mid-Galactic Empire 2000 centuries in the future!
Suddenly John is thrust into a last-ditch battle between the democratic Empire World and the tyranny of the Black Cloud regime. Only one weapon—the terrifying Disruptor—can win the struggle for the Empire Forces. But it is so powerful that unless John uses it correctly it could destroy not only the enemy but the cosmos.
Could his 20th century mind cope with the technology of 200,000 years from now?
Doomstar by Edmond Hamilton
Belmont Tower Books, 1966
Price I paid: 75¢
By mid-afternoon the brilliant intense sun shone on barren space. It had blasted each of its four planets out of existence.
SOMEONE HAD FOUND A WAY TO POISON A STAR!
Someone had to be found who could prevent the takeover or destruction of the entire universe by the madman who’d engineered the disaster. The choice fell on Johnny Kettrick, banned from the Cluster World for space piracy. Now he was to be sent back there to search out the Doomstar—to find it before it burned out another world!